Copyright protection in a digital environment is difficult. Protection is made more difficult because of the scope of the Internet, uncertainty of a governing Internet agency, and copyright enforcement problems. Copyright protection is further complicated because search engines utilize a process involving copying web sites and displaying cached links to web sites without the web site owner's express permission. By analyzing the intersection of copyright law and the search engine caching process, it is clear that search engines are on dangerous ground and possibly violate the copyrights of web site owners. Accordingly, a solution is proposed that compensates web site owners and ensures that search engines operate within the bounds of copyright.
Nicole Bashor, The Cache Cow: Can Caching and Copyright Co-exist?, 6 J. Marshall Rev. Intell. Prop. L. 101 (2006)